The Hon. Hamilton Knight (9 December 1888 – 14 January 1964) was an Australian politician and a member of the New South Wales Legislative Assembly from 1927 until 1947 . During his parliamentary career he was, at various times, a member of the Australian Labor Party (ALP), the Australian Labor Party (NSW) and the Australian Labor Party (Non-Communist). He was the Minister for Labour and Industry and Social Welfare for 6 years during the premiership of William McKell.